True somewhat, But if you have say 1000 Q's right now, and you work that
one guy on Ten, you just gained 1000 more points for that ten minutes.
What are the odds against you working on that original band 1000 points
in that ten minutes?

Close to 100%.

The top M/2 scores have around 300 multipliers by the end of the
contest. In those 10 minutes, they will easily make 3.3 QSO's for 1000
points on the original band.